Air cleaner



W. T. DANIELS Dec. 30, 1952 AIR CLEANER 2 SHEETS-SHEET 1 Filed March 20. 1947 Inventor Fig. 2.

William T Daniels and DEC. 30, 1952 w, N LS 2,623,609

AIR CLEANER Filed March 20, 1947 2 SHEETS-SHEET 2 William T. Daniels 66 7 Fig.3. v

Atlomeys Patented Dec. 30, 1952 UNITED STATES PATENT OFFICE AIR CLEANER William T. Daniels, Pittsburgh, Pa.

Application March 20, 1947, Serial No. 735,937

1 Claim. 1

This invention relates generally to air cleaners and more particularly to an air cleaner of the type adapted to be inserted in the conduit between an air pump, compressor or pressure tank and the device to be supplied with pressurized air.

A primary object of the invention is to provide an air cleaner of simple construction which may be secured intermediate the ends of a pipe or conduit of any nature used to operatively connect a compressor or compressed air tank with pneumatic tools, or other devices adapted for using the pressurized air, the device being adapted for construction in suitable sizes rendering the same suitable for attachment to the tank or pump or to the air operated device, in the latter case the size of the air cleaner being ordinarily reduced to minimize the weight and bulk thereof.

It is another object of this invention to provide for the easy removal of condensation water and other impurities in the air, after the accumulation of these impurities in a receptacle provided therefor.

It is another object of this invention to generally simplify the construction of air cleaners.

It is a still further object of this invention to provide an air cleaner with spaced foraminous pads which are extremely conveniently applied to andremoved from the cleaner, thus making the maintenance thereof simpler-"and easier.

And a last object to be specifically mentioned is Q to provide an air cleaner which is relatively inexpensive and practical to manufacture, simple and convenient to install and use, and which will give generally efficient and durable service.

With these and other objects definitely in view, this invention resides in certain novel features of construction, combination and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claim, reference being had to the accompanying drawings which form a material part of this application, and in which:

Figure 1 is a side elevational view of this cleaner;

Figure 2 is another side elevational view of this cleaner;

Figure 3 is a vertical transverse sectional view, taken on the center line 33 in Figure 2;

Figure 4 is a top plan view of the cleaner;

Figure 5 is a top plan view of the flanged top portion of what is hereinafter referred to as the smaller inner tube, the view being technically a horizontal sectional view, taken on the line 5--5 in Figure 3, and

Figure 6 is a horizontal sectional view, taken on the line 6-4 in F ure 3.

Similar characters of reference designate similar oridentical parts andportions throughout the specification and throughout the several views of the drawings.

7 Referring now to the drawings in detail, which drawings represent one preferred embodiment of this invention, it will be noted that this air cleaner includes an outer tube [0 which is exteriorly threaded as at I2 at the lower end thereof and may be interiorly undercut, as at l4, at the upper end thereof. A smaller tube I6 is adapted to be disposed within the outer tube 10, being provided with an annular flange 18 at the top end of this smaller tube, the flange I8 being adapted to fit into the undercut portion I4 and to be secured to the tube It! by a set screw 20, or in any other suitable manner, so that this smaller tube It is disposed centrally or co-axiall'y within the tube Ii), the smaller tube-being considerably shorter in length than the outer tube and the flange 18 having an aperture 22 registering with the space between the two tubes and another aperture 24 registering with the upper end of the tube It, these apertures 22 and 24 being. of the nature of angularly disposed channels, as

well illustrated in Figure 3. The flange I8, and consequently the apertures or channels 22 and 24, is kept in proper registration with the outer tube It] by provision of a dowel pin 26 inserted according to conventional practice between the flange l8 and the tube II).

A head 28 is comprised essentially of a pipe adapted to be diametrically disposed on the upper end of the cylinder [0 and an attachment plate 30 which may be integrated to the pipe portion of the head, as by welding. This attachment plate 30 is apertured for the insertion therethrough of a pair of attachment bolts 32, these bolts being preferably of stud character and adapted to be screwed into holes suitably drilled and tapped in the flange I8. The head 26 is provided with a central partition 34, disposed between the two apertures 3B and 38 in the bottom portion of the head, that is, adapted to communicate the two ends of the pipe portion of the head with the channel apertures 22 and 24, and it should be noted that the ends of the pipe portion of the head are interiorly threaded as at 40 and 42 and may be provided with terminal beads 44.

The lower end of the outer tube I 0 is closed by a cap 46 which is interiorly threaded to engage the threaded portion [2 of the tube. An elbow 48 is threadedly secured to the center of the cap 46 and this elbow has a perforated end plate 50 on the end screwed into the cap 46, and a closed ended cylindrical receptacle 52 is adapted to be screwed into the lower end of the elbow 48. In this connection, it should be noted that this receptacle 52 is provided with an air vent 54 and a moisture vent 56.

A plurality of pads 58 which may be constructed of matted ribboned metal or other suitable material, are adapted to be inserted over the inner tube 16, so asto close the channel between the tubes I and I5, these pads being normally of cylindrical shape and centrally apertured to receive the tube I6. It is preferred that these pads should be supported on each side thereof by foraminous plates or screens 60, and although special means may be provided to locate these supporting members and pads in spaced relation upon the tube 16, it has been found practicable to construct these pads and supporting members in such manner that they are retained in position by frictional contact with the tubes In and Hi, this construction allowing for very easy assembly and removal of these parts.

Another pad 62 of similar material is inserted in the bottom end of the outer tube It and within the cap 45, and the elbow 4B and condensation receptacle 52 will also be preferably partially or wholly filled with similar material, as indicated at 6'4 and 5G.

The operation of'this cleaner will be clear from the foregoing description of the mechanical details thereof, taken in connection with the above recitation of the objects sought to 'be achieved by this invention, but in recapitulation, it may be noted that the action of the pads 58, 62, and in a lesser degree the pads '64 and 6B, is to clean and dry a draft of air flowing in the direction of the arrows in Figure 3, the pads being easily removable for cleaning, and the water condensed out of the air being easily removed from the condensation receptacle 52. Ordinarily, the aperture '56 in this condensation receptacle 52 may be left opened and the water condensed from the conditioned air will escape without removal of the receptacle '52 from the elbow 48, but in some instances, it will be desirable to close the aperture 56 and .in these cases it will be necessary to remove the receptacle and the condensed water may be emptied therefrom. It should be noted that many useful modifications may be made in this invention, including such changes as securement of the flange l8 to the outer tube 10 in a difi'erent manner, the provision of a cap 46 and receptacle 52 in two-piece construction, rather than in three parts as illustrated, but such modifications are thought to be well within the scope and spirit of this invention and Within a fair interpretation of the appended claim. Accordingly, though there has been shown a particular embodiment of this invention, this application is not limited to this particular embodiment, but it is desired to include in the scope of this invention the construction, combination and arrangement of parts and portions substantially as set forth in the appended claim.

Having thus described this invention what is claimed as new and desired to be secured by Letters Patent is:

An air cleaner comprising an outer tube, a smaller tube disposed within and spaced from said outer tube. foraminous material disposed between said tubes, a head having inlet and outlet apertures communicating with the upper open ends of said tubes, the lower end of said outer tube having a removable cap, and a receptacle removably secured to said cap and communicating with said outer tube, said receptacle being elongated and disposed horizontally and having water absorbent material therein, an air vent on the upper side of said receptacle, and a liquid moisture vent on the outer lower portion of the receptacle.

WILLIAM T. DANIELS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITE-D STATES PATENTS Number Name Date 547,911 Christie Oct. 15, 1895 1,098,506 Kelm June'2, 19.14 1,714,825 Stephan May 28, 1929 1,739,093 Ruby .Dec. '10, 19.29 1,746,774 Jenkins Feb. 11, 1930 1,780,156 Hall Nov. 4, 1930 1,864,289 Cenglemeyer June 21, 1932 1,912,235 Winslow May '30, 1933 

